What theories account for the mass extinction of large mammals in the Americas?
What will be an ideal response?
There are three competing scientific theories that might explain the mass extinctions of large mammals. Overhunting by the Paleo-Indians is one explanation. Other scientists think that dramatic climate change is responsible for extinctions of large mammals. In this case, the rising temperatures that marked the end of the Ice Age killed off animals that were unable to adapt. The final theory is that diseases brought to the New World by humans and their animals (i.e., dogs and rats) killed off the large game in the Americas.
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When we look at the data on gender differences in school achievement with an intersectional lens, we can conclude that ______.
A. girls receive higher grades than boys across all ethnic groups B. Asian boys receive higher grades than Asian girls, but girls receive higher grades in every other ethnic group C. White, Black, and Asian girls have higher school achievement scores, but Latino boys have higher school achievement scores than Latina girls. D. gender differences in school achievement vary across ethnic groups
The Democratic Party linked popular democracy with the defense of southern slavery
a. True b. False Indicate whether the statement is true or false
During World War I, the War Industries Board __________
A) controlled the entire war mobilization effort B) was led by Herbert Hoover C) oversaw the production of America's factories D) failed to lead American industry effectively E) was concerned with building new munitions plants
The chief rival of the Sasanid Empire for predominance in the Near East from the third to seventh century C.E. was
a. the Seljuk kingdom. b. the Byzantine Empire. c. Kush. d. the Gupta Empire.